Question

section review 4.4

1. what are two advantages of producing a new plant by vegetative propagation instead of growing the plant from a seed?
2. briefly describe the functions of the major plant hormones.
3. what are some examples of special stems used to store food for the plant?
4. how do tendrils help certain plants to “climb” objects?

Explanation:

1. Vegetative propagation can produce genetically identical plants quickly and without the need for pollination. It also allows for the propagation of plants that may have difficulty producing viable seeds.
2. Plant hormones regulate growth, development, and responses to environmental stimuli. For example, auxins promote cell elongation, cytokinins stimulate cell division, and abscisic acid regulates seed dormancy and stress responses.
3. Examples of special stems used to store food include tubers (e.g., potato), bulbs (e.g., onion), and rhizomes (e.g., ginger).
4. Tendrils in certain plants are modified leaves or stems that coil around objects to provide support for the plant to climb.

Answer:

1. Produces genetically - identical plants quickly; can propagate plants with seed - production issues.
2. Regulate growth, development, and environmental responses (auxins for cell elongation, cytokinins for cell division, abscisic acid for dormancy and stress).
3. Tubers (potato), bulbs (onion), rhizomes (ginger).
4. Coil around objects to provide climbing support.